If I Were a Core
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This Is Aperture
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Welcome To The Future
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Testing With Nature (funnel)
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Natural Light
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Halted Production
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Troubled Water (funnel)
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Live Fire Exercise
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Testing With Nature
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The Junkyard Offices
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The Junkyards
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Long Way Down (funnel)
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Transitional Period (funnel)
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Obscuration
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Firestorm
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The Spheres
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Obscuration (funnel)
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Arrival
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Deep Sleep
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Transitional Period
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Welcome To The Future (funnel)
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Long Way Down
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Defective
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Decades Of Science
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Interfacing
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Adjacency (menu)
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Natural Light (funnel)
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Out Of Order
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Skototropism
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Acceleration
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Waking Up To Science
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Testing Begins
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The Pit Song
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Glados Is to Blame
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Aperture Central
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Troubled Water (trailer theme)
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The Best The World Had To Offer
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Adjacency
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Mel's Story
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Troubled Water
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The Android Hell Blues
Harry Callaghan, The Stupendium
The Wheatley Song
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This Is Aperture (Remastered 2021)
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System Corruption (alternate)
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Waking Up To Science (menu)
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Making Science
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System Corruption
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Live Fire Exercise (funnel)
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Skototropism (funnel)
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Fallout
NIGHTkilla, Harry Callaghan
Central Hub
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Arrival
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You Are A Dead Test Subject
1081904
Life-Shortening Test Conditions
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Life's Too Short
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Art Therapy
Harry Callaghan